Re: question about FreeLibrary

From:

"TOM" <someone@somewhere.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Fri, 27 Aug 2010 12:36:16 -0500

Message-ID:

<i58t2b$tl6$1@speranza.aioe.org>

You can get a bit more crazy with the TRACE..

if(sm_dll != NULL)
{
    TRACE( _T("In if..., Before FREE?") );
    ::FreeLibrary(sm_dll);
    TRACE( _T("In if..., After FREE?") );
}
else
    TRACE( _T("sm_dll is NULL") );

"kathy" <yqin_99@yahoo.com> wrote in message
news:e7bc30fc-5682-4f49-8072-2dd28b059928@x42g2000yqx.googlegroups.com...

I add the TRACE statement.

    if(sm_dll != NULL)
    ::FreeLibrary(sm_dll);
    TRACE("return here?");

I set break point at TRACE statement. Afier I hit F10, no return;

On Aug 27, 10:03 am, Joseph M. Newcomer <newco...@flounder.com> wrote:

Actually, you don't know that it "never returns". There are two possible
situations:

        It does not return from FreeLibrary

        It returns but does not stop execution and return control to you
in the debugger

This is why I suggested explicitly putting a breakpoint after the
FreeLibrary call and
adding a TRACE statement. It will help determine which of the two
situations applies. If
the second, there is a problem with the debugger and it should be
reported to Microsoft.
                                joe

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